San Mateo, California Population 2020

104,983

San Mateo is a city located in California. With a 2020 population of 104,983, it is the 68th largest city in California and the 298th largest city in the United States. San Mateo is currently declining at a rate of -0.02% annually but its population has increased by 8.00% since the most recent census, which recorded a population of 97,207 in 2010. San Mateo reached it's highest population of 105,025 in 2018. Spanning over 16 miles, San Mateo has a population density of 8,626 people per square mile.

The average household income in San Mateo is $154,600 with a poverty rate of 7.57%. The median rental costs in recent years comes to $2,301 per month, and the median house value is $1.01 Mn. The median age in San Mateo is 38.5 years, 37 years for males, and 39.8 years for females. For every 100 females there are 99.3 males.

San Mateo Demographics

According to the most recent ACS, the racial composition of San Mateo was:

  • White: 55.87%
  • Asian: 23.00%
  • Other race: 10.13%
  • Two or more races: 6.54%
  • Native Hawaiian or Pacific Islander: 2.02%
  • Black or African American: 1.96%
  • Native American: 0.46%
The current population of San Mateo, California is 104,983, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 105,025.The last official US Census in 2010 recorded the population at 97,207.

San Mateo, California Population 2020

Population by Race

Race Population Percentage
White58,12855.87%
Asian23,92823.00%
Some Other Race10,54310.13%
Two or More Races6,8066.54%
Native Hawaiian and Other Pacific Islander2,1062.02%
Black or African American2,0421.96%
American Indian and Alaska Native4820.46%

San Mateo Population Pyramid 2020

San Mateo Median Age

38.5


Total

37


Male

39.8


Female

San Mateo Adults

There are 81,981 adults, (15,675 of whom are seniors) in San Mateo.

San Mateo Age Dependency

56.9

Age Dependency Ratio

23.6

Old Age Dependency Ratio

33.3

Child Dependency Ratio

San Mateo Sex Ratio

Female

52,207

50.18%

Male

51,828

49.82%

San Mateo Households and Families

San Mateo Renter vs Owner Occupied by Household Type

San Mateo Household Types

Type Owner Renter
Married64.1%35.9%
All55.2%44.8%
Female47.1%52.9%
Non Family46.2%53.8%
Male40.6%59.4%

55.2%

Rate of Home Ownership

Type Count Average Size Owned
All38,5832.6555.2
Married19,5973.3164.1
Non Family13,9811.3446.2
Female3,7083.8347.1
Male1,2973.5640.6

3.25

Average Family Size

2.65

Average Household Size

5.7%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

San Mateo Education

Education Attained Count Percentage
Less Than 9th Grade4,6726.25%
9th to 12th Grade2,8603.83%
High School Graduate10,39813.91%
Some College12,09216.18%
Associates Degree4,8466.48%
Bachelors Degree23,03230.82%
Graduate Degree16,83622.53%

San Mateo Educational Attainment by Race

Name Total High School Bachelors
White35,47634,37821,326
Asian19,05418,02113,322
Hispanic15,24810,2413,037
Other Race6,4054,0011,068
Multiple Races2,8362,6671,364
Black1,4871,331573
Islander1,2621,132359
Native American29623244

The highest rate of high school graduation is among white people with a rate of 96.90%.

The highest rate of bachelors degrees is among asian people with a rate of 69.92%.

Name Average Male Female
Overall$65,154$74,681$55,130
Less Than High School$25,869$29,244$19,633
High School Grad$30,936$37,572$22,028
Some College$49,749$59,299$40,849
Bachelors Degree$83,740$100,272$71,848
Graduate Degree$109,843$133,897$91,190

$65,154

Average Earnings

$74,681

Average Male

$55,130

Average Female

San Mateo Language

San Mateo Language by Age

San Mateo Language

56.61% of San Mateo residents speak only English, while 43.39% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 19.48% of the population.

San Mateo Poverty

San Mateo Poverty by Race

Name Total In Poverty Poverty Rate
Hispanic25,6493,90915.24%
Other10,4601,92818.43%
White44,5831,9134.29%
Asian23,8521,2405.20%
Multiple6,7875157.59%
Islander2,10332415.41%
Black2,0171818.97%
Native460357.61%

7.57%

Overall Poverty Rate

6.75%

Male Poverty Rate

8.37%

Female Poverty Rate

Poverty in San Mateo

The race most likely to be in poverty in San Mateo is Other, with 18.43% below the poverty level.

The race least likely to be in poverty in San Mateo is White, with 4.29% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.89%. Among those working part-time, it was 7.71%, and for those that did not work, the poverty rate was 16.28%.

Name Poverty
Less Than High School19.56%
High School13.42%
Some College5.80%
Bachelors or Greater2.83%
Name Poverty
Male Unemployed12.86%
Female Unemployed9.41%
Female Employed3.80%
Male Employed3.61%

San Mateo Income

San Mateo Income by Household Type

Name Median Mean
Households$115,167$154,600
Families$134,451$176,849
Married Families$153,721-
Non Families$78,545$107,230

San Mateo Marital Status

San Mateo Marital Status

Marriage Rates

51.3%

Overall Marriage Rate

52.3%

Male Marriage Rate

50.4%

Female Marriage Rate

San Mateo Married by Age and Sex

San Mateo Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

San Mateo Marital Status by Race

San Mateo Veterans

2,929

Number of Veterans

2,771

Male Veterans

158

Female Veterans

War Veterans
Vietnam974
Korea479
First Gulf War347
Second Gulf War308
World War II243
Age Group Veterans
75+1,150
65 to 74806
35 to 54570
55 to 64317
18 to 3486
Name Veterans % of Total
White2,2404.78%
Asian3561.74%
Hispanic2751.52%
2 or More1223.48%
Black1016.36%
Other620.80%
Hawaiian332.32%
Indian153.69%

$San Mateo Veterans by Education

4.15%

Veteran Poverty Rate

32.28%

Veteran Disability Rate

San Mateo Employment Status

71.1%

Labor Force Participation

68.4%

Employment Rate

3.8%

Unemployment Rate

San Mateo Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

48.58%

Born in California

67.08%

Native Born

32.92%

Foreign Born

16.58%

Non Citizen

Place of Birth

67.08% of San Mateo residents were born in the United States, with 48.58% having been born in California. 16.58% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
2020104,983-21-0.02%
2019105,004-21-0.02%
2018105,0256260.60%
2017104,399-21-0.02%
2016104,4208390.81%
2015103,5818080.79%
2014102,7731,3881.37%
2013101,3851,5261.53%
201299,8591,3211.34%
201198,5381,1391.17%
201097,3994,9170.52%
200092,4826,9960.79%
199085,4867,8460.97%
198077,640-1,351-0.17%
197078,9919,1211.23%
196069,87028,0885.28%
195041,78222,3797.97%
194019,4035,9593.74%
193013,4447,4658.44%
19205,9791,5953.15%
19104,3842,5529.12%
19001,8329003.44%
18809320.00%